Objective To study the physical stress reactions of soldiers undergone 100 kilometer march in battle gear,and explore the mechanism of biochemical changes in special military physical training.Methods Thirty four soldiers of armed-police force,averagely aged 18.6?1.6 years,169.3?4.2cm in height,weighted 65.4?4.5kg and with one-year of military physical training experience,were involved in present study.The soldiers were loaded about 25 kilogram of battle gear in a supervised 100 kilometer march in three days.The changes on biochemical index after the march were analyzed.Results After 100 kilometer march in battle gear,significant decline were found in the following biochemistry indexes in the soldiers involved: HB(P

0.05).⑵ With the increase of titers of anti-A(B) antibodies of IgG type, both the incidence and severity of HDN elevated (P

0.01).After incubation with trehalose for 4h,the expression of CD62p increased,and it decreased when platelets activation inhibitor PGE-1 and adenosine were added to the incubation buffer.The expression of PAC-1 showed no difference among the three groups. Conclusion The preprocessing before platelets lyophilization has no significant effects on the function and activity of platelets when the platelets activation inhibitor is added.

Objective To study the technology of loading trehalose into cytoplasm of human platelets before lyophilization,and to determine the optimal experimental conditions of pretreatment technology.Methods The curves of loading efficiency,the internal trehalose concentration versus incubated time,temperature,and external trehalose concentration were drawn up to screen the optimal loading parameters.Results The loading efficiency was linear to the incubated time(2 hours later) and incubated temperature(range from 30℃ to 40℃),respectively.The loading efficiency almost reached 60 percent when the platelets were incubated at 37℃ for 4h.The intracellular trehalose concentration was increased with the raise of the external trehalose concentration(

BACKGROUND: Knowing the pathological changes of the lungs after the wallop from the bullet wound helps to improve the method or mean of dealing with the wound or to reduce the damage to lung functions after the wound.OBJECTIVE: To probe into the functional and pathological changes of the lung tissues after bullet wound.DESIGN: Open experimental study of the animals.SETTING: Department of the Integrated Traditional Chinese and Western Medicine, General Hospital of the Chinese People's Armed Police Forces.MATERIALS: The experiment was completed from June 2003 to December 2003 at the General Hospital of the Armed Police Forces. Six healthy grown-up cross-bred dogs, half male and half female, weighing ( 16.3 ± 0.58 ) kg, aged (8 - 12) months old, were provided by the Experimental Animal Center of the Military Academy of Sciences of Chinese PLA. Animal Center's license No. Was SCXK(army)2002-001. The animals were fed with water and food with no restrictions in an environment in which the temperature was 22 to 23 ℃ and the humidity was 74% - 80%.METHODS: Grown-up healthy domestic dogs were shot at the thick muscular part of their left hind legs with a size 81 automatic rifles, 7.62 mm in caliber and bullet of type-560. Caution was taken to avoid damage to the major vessels and the bone tissues. The shooting distance was 5 meters. Immediate hemostasis and bandaging were performed after shooting. And 6 hours later, pathological examination of the lungs was carTied out.MAIN OUTCOME MEASURES: Pathological changes of the lungs.RESULTS: After the bullet wound, the main pathological manifestations of the lungs were detelectasis of the pulmonary alveoli and the decrease of air volume complicated with inflammatory alveoli infiltration, lung edema, obscure structure of pulmonary alveoli, passive congestion of the small blood vessels, etc.CONCLUSION: The lung wound was obvious after bullet wound and its mechanism was associated with stress, inflammatory reaction of the adjacent tissues and far domino effect. Blood rheological changes after the wound were one of the most important factors to affect the microcirculation of the cerebral and lung tissues. It was found that clear blood rheological changes occurred at the earlier stage after the wound, and the chief manifestations included the increase of the whole blood viscosity and the index of the erythrocyte aggregation at the time of low sheering rate. The changes reached their peaks 6hours after the wound. On the one hand, because of the increase of whole blood viscosity and the index of erythrocyte aggregation, stasis of red blood cells might happen. And embolism of micro blood vessels in the brain and lungs would change the microcirculation of the brain and lungs. On the other hand, when serious injury of local tissues happens, the body's stress reaction would be strong and secretion and the release of stress hormones and certain active biological small molecular substances would increase, such as nitrogen monoxide(NO), tumor necrosis factor(TNF), endothelin(ET), etc. Their increase would stimulate the micro blood vessels of the brain and lungs and disturb their diastole and constriction functions. After the wound by high-speed projectile, blood flow volume in the animal's cerebral and lung tissues reduced sharply. The micrangium of the brain and lung dilated, and its diameter increased, which resulted in ischemia and hypoxia of the brain and lung tissues, and therefore edema of the brain and lung tissues and hypofunction of the lungs. Therefore, for the bullet wound of the limbs, in addition to dealing with local damage, the brain, the lungs and other important organs should be protected. This provides a theoretical basis for improving the brain and lung function after the bullet wound.

Objective To analyze the curative effect of blood transfusion on 100 patients undergoing liver transplantation,to efficiently enhance hemostasis and coagulation function of the patients,to lower the incidence of the operative complications,and to put forward the guideline of blood transfusion to the patients undergoing liver transplantation.Methods The volumes of red blood cells concentrates(RCCs),fresh frozen plasma(FFP),cryopreserved platelets,and cryoprecipitate transfused to the patients undergoing liver transplantation were measured before,during and after the operation respectively.The volumes of blood components transfused to the 50 patients in the former stage and 50 patients in the later stage of liver transplantation in our hospital were also measured respectively.Results The mean volume of the blood components transfused to each patient was 3 334ml.The ratios of the transfused blood volumes to 100 patients were 4.3%,53.4% and 42.3% before,during and after operation respectively.The rate of blood components transfusion was 100% and the ratio of transfused blood volumes to the patients between RCCs and FFP was 1.45:1.The mean volumes of the transfused blood and the operative complications of 50 patients in the former stage of liver transplantation of our hospital were significantly higher than those of the 50 patients in the later stage.Conclusion It is very vital in the scientific,safe and reasonable blood transfusion for the success of liver transplantation,which significantly lowers the incidence of operative complications,such as massive haemorrhage during and after operation,and thrombosis at inosculation of liver artery and portal vein.

Based on a description of the positioning and characteristics of the hospital and its development roadblocks and mission,the authors studied practical experiences in building a research hospital.The hospital has achieved a leap-forward development thanks to its pursuit of quality as lifeline,innovative research and translation,enhancement of its role in rescue medicine innovation,and leveraging branding effect of rescue medicine.

To probe influence of stress on the mental behaviours of soldiers. ①The mental behaviours during performing a task of emergency were investigated in 1033 soldieries. Of them, 200 performed the task of cracking smuggling activities, 338 the tasks of fighting a flood and sending relief to a disaster area, 187 the task of safeguarding the public order, and 98 task of pursuing and capturing escaped criminals, 210 the task of being on duty of internal conference of heads of state, and 200 as controls. ②The adult male rats were divited in to 4 groups and different stress impairment models were established. Spatial distinction ability was measured with jump platform test, avoidance action ability was determined with avoid lightless test. The results showed that the most servere stress was found in those who persued and captured the escaped criminals. Insomnia, amnesia,ballucination and loss of confidence were found in the remainders. It is suggestted that stress can lead to decrease in memory and response of human beings and rats.

OBJECTIVETo investigate the differences between clinicopathological features and prognosis of alpha-fetoprotein (AFP) negative (AFP < 20 ng/ml) and positive (AFP ≥ 20 ng/ml) hepatocellular carcinoma (HCC) patients.

METHODSClinicopathological data of 142 AFP-negative and 109 AFP-positive HCC patients who underwent RO radical hepatectomy in the Cancer Hospital of Chinese Academy of Medical Sciences between January 2006 and December 2011 were retrospectively reviewed and analyzed in this study.

RESULTSCompared with the AFP-negative patients, a higher female to male sex ratio, the later Barcelona Clinic Liver Cancer ( BCLC) stage, more liver capsule invasion and poorer Edmondson-Steiner grade were in the AFP-positive cases (P < 0.05 for all). Furthermore, the 1-, 3-, and 5- year overall survival rates were 94.4%, 82.4% and 61.0% in the AFP-negative group and 87.2%, 61.1% and 40.2%, respectively, in the AFP-positive group (P < 0.001). The multivariate analysis with Cox's proportional hazards model showed that AFP status, tumor size and Edmondson-Steiner grade are independent risk factors for survival of all the patients (P < 0.05) , and large tumor and Edmondson-Steiner grades III/IV are independent risk factors for worse survival in AFP-negative patients (P < 0.05). However, large tumor diameter was proved to be an independent risk factor leading to poor prognosis of AFP-positive cases (P < 0.05).

CONCLUSIONHigh levels of AFP indicate that the tumors are more malignant and with unfavorable prognosis.

Asian Continental Ancestry Group ; Carcinoma, Hepatocellular ; chemistry ; mortality ; pathology ; surgery ; Female ; Hepatectomy ; Humans ; Liver Neoplasms ; chemistry ; mortality ; pathology ; surgery ; Male ; Multivariate Analysis ; Prognosis ; Proportional Hazards Models ; Retrospective Studies ; Risk Factors ; Survival Rate ; alpha-Fetoproteins ; analysis

ObjectiveTo investigate the time characteristics of brain function induced by acupuncture at acupoint of LI4(Hegu).MethodsThe data of functional magnetic resonance imaging(fMRI) induced by acupuncture at acupoint LI4(Hegu) was processed with modified temporal cluster analysis(MTCA) to obtain the time and trend of brain function.ResultsThe stimulation of acupuncture at acupoint LI4 induced the change of brain function,and time curve of brain functional during the acupuncture experiment was obtained.ConclusionThe effect of acupuncture at acupoint LI4(Hegu) on brain function has time characteristics.